Absorbent composites comprising a porous macrostructure of absorbent gelling particles and a substrate
US5536264A · kind A · utility
133Cited by
80References
37Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 22, 1993 |
| Grant date | Jul 16, 1996 |
| Priority date | — |
| Expiry date | Oct 22, 2013 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F13/532
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An absorbent composite having a porous absorbent macrostructure and a substrate. The porous macrostructure has interconnected absorbent gelling particles that are surface crosslinked with cationic, preferably polymeric, amino-epichlorohydrin adducts. Upon contacting liquids such as water or body exudates (e.g., urine), the porous absorbent macrostructure can swell and imbibe the liquids. The composite is useful in absorbent articles such as diapers, adult incontinence pads, and sanitary napkins are disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.